<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>类选择器</title>
		<style type="text/css">
		td{
			border:1px dashed blue 
		}
		#mytable{
			width:260;
		border-width:5px;
		border-style:double;
		border-color:gray;	
		border-collapse:collapse;
		}
		#mytd{
			background-color:#fedcba;
			text-align:center;
			font-size:16px;
			font-style:italic;
		}	
		</style>
	</head>
	<body>
		<table id="mytable">
			<tr>
				<td>单元格</td>
				<td>单元格</td>
				<td id="mytd">单元格</td>
			</tr>
			<tr>
				<td>单元格</td>
				<td>单元格</td>
				<td>单元格</td>
			</tr>
		</table>
	</body>
</html>
